On March 16th, 2012, the NINDS issued two Funding Opportunity Announcements (FOAs): RFA-NS-12-010 - Exploratory Laboratory and Analysis Projects in Parkinson's Disease Biomarkers (U18) and RFA-NS-12-011 - Studies in Parkinson's Disease Biomarkers Discovery (U01). The goal of RFA-NS-12-010 is to stimulate innovation and development of technologies and reagents that will accelerate the discovery of biological biomarkers for Parkinson’s disease (PD). The goal of RFA-NS-12-011 is to support hypothesis driven clinical research to discover biomarkers that will improve the efficiency and outcome of Phase II clinical trials for Parkinson’s Disease (PD) and to support the collection of clinical data and new biological specimens that will be used for biomarker exploratory efforts under the NINDS Parkinson’s Disease Biomarkers Program (PDBP). To date, several questions about these FOAs have been submitted from various investigators. The purpose of this Notice is to inform potential applicants that a list of Frequently Asked Questions (FAQs) and answers is available at (http://pdbp.ninds.nih.gov/). These FAQs may be updated periodically without additional notice.